Praetura Ventures has previously invested in the likes of Artorius, Challenge Group, Culture Shift and Dr Fertility. : Praetura Ventures has previously invested in the likes of Artorius, Challenge Group, Culture Shift and Dr Fertility A Manchester-based investment firm has helped a socially-minded technology company secure more than £2m. Praetura Ventures and Blackfinch led a funding round to provide Transreport, which is set to transform the travel experiences of those with reduced mobility, with £2.3m.